+ /* Ordinarily, the core driver code will skip passing hidden output items
+ to 'submit'. If this member is true, the core driver hands them to the
+ driver to let it handle them itself. */
+ bool handles_show;
+
+ /* Ordinarily, the core driver code will flatten groups of output items
+ before passing them to 'submit'. If this member is true, the core
+ driver code leaves them in place for the driver to handle. */
+ bool handles_groups;
+ };